JavaFX ランタイムを初期化して、同時実行機能を利用するコントローラーを (JUnit で) 単体テストできるようにする適切な方法は何Platform.runLater(Runnable)
ですか?
Application.launch(...)
メソッドから呼び出す@BeforeClass
と、デッド ロックが発生します。が呼び出されない場合Application.launch(...)
、次のエラーがスローされます。
java.lang.IllegalStateException: Toolkit not initialized
at com.sun.javafx.application.PlatformImpl.runLater(PlatformImpl.java:121)
at com.sun.javafx.application.PlatformImpl.runLater(PlatformImpl.java:116)
at javafx.application.Platform.runLater(Platform.java:52)
at javafx.concurrent.Task.runLater(Task.java:1042)
at javafx.concurrent.Task.updateMessage(Task.java:987)
at com.xyz.AudioSegmentExtractor.call(AudioSegmentExtractor.java:64)
at com.xyz.CompletionControllerTest.setUp(CompletionControllerTest.java:69)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:601)
at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:44)
at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)
at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:41)
at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:27)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:76)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:50)
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191)
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:42)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184)
at org.junit.runners.ParentRunner.run(ParentRunner.java:236)
at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:50)
at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:467)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:683)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:390)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:197)
フォローアップ: これは、@SergeyGrinev の推奨に基づいて使用しているモチーフです。
... // Inside test class
public static class AsNonApp extends Application {
@Override
public void start(Stage primaryStage) throws Exception {
// noop
}
}
@BeforeClass
public static void initJFX() {
Thread t = new Thread("JavaFX Init Thread") {
public void run() {
Application.launch(AsNonApp.class, new String[0]);
}
};
t.setDaemon(true);
t.start();
}
... // controller tests follow...